Device for cooling milk



(No Model.)

J. W. SMART 8u T. C. CHEATHAM. DBVIGB POB, COOLING MILK, MEAT, VEGETABLES, am. No. 478,720.

Patented July 12, 1892.

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NITED STATES ATENT OFFICE.

JOHN lV. SMART AND THOMAS O. OHEATHAM, OF BURNET, TEXAS.

DEVICEFOR COOLING MILK, MEAT, VEGETABLES, 80C.-

SPECIFICATION forming part of Letters Patent No. 478,720, dated July 12, 1892.

Application iiled April 27, 1892. Serial No. 430,839. (No model.)

To all whom it may concern,.-

Be it known that We, JOHN 1V. SMART and THOMAS C. CHEA'rHAM, citizens of the United States, residing at Burnet, in the county of Burnet and State of Texas, have invented new and useful Improvements in Devices for Cooling Milk, Meats, Vegetables, and the Like, of which the following is a specification.

This invention relates toV devices for cool` ing milk, meats, vegetables, and the like; and it has for its object to provide an article of this class designed to be used upon jars, pails, dto., of varying diameters.

A further object of the invention is to provide a device of this character of suchv construction as will produce a continuous current of air through the vessel upon which it is placed and which will also possess advantages in point of inexpensiveness and durability in construction and general efficiency.

In the drawings, Figure 1 is a perspective view illustrating the application of our invention, the cloth covering being broken away. Fig. 2 is a central vertical sectional view. Fig. 3 isa bottom or inverted plane View. Fig. 4 is a detail sectional view illustrating the adjustment of the cap.

Corresponding parts in the figures are denoted by the same letters of reference.'

Referring to the drawings, A designates a vessel, upon which is applied our improved cooling device. The latter comprises a circular plate or base B, disposed over and covering the mouth of said vessel. The plate B is constructed of sheet metal or other suitable material and is corrugated or provided upon its under surface with grooves to form air-inlets b. The plate is also provided with a central circular opeuin g c, surrounding which and projecting upwardly from the plate is a tubular flue O, designed for carrying off the heated air and gases from the contents of the vessel. The ue is permanently secured to the plate and serves the additional purpose of a handle for placing and removing the device.

Projecting upwardly from the plate B and inclosing the flue C is an annular flange D. The latter is rigidly secured to the plate and is of much greater diameter than said flue, thus forming a chamber E, surrounding the latter, for the reception of ice or cold water.

Pins cl are provided at the upper edge of the liange D and project inwardly therefrom.

In practice the vessel is designed to be entirely enveloped in a cloth covering F, the edges of said covering projecting over the plate B and ange D and secured upon the pins d. The extreme edge of the covering contacts with the water within the chamber E and serves to convey the same by capillary attraction down through the cloth,thus rendering the latter a non-conductor for the external heated air.

F designates a cap to fit over the flue C and 'exclude the entrance of foreign substances into the vessel. The cap is provided with depending arms f, secured at their lower ends to a ring G. The latter encircles the iiue C and fits closely thereon, and thereby permits the vertical adjustment of the cap. Thus by this means the current of air passing through the vessel is readily regulated, or when desired the flue-opening may be entirely closed.

' The operation and avantages of our invention will be readily understood by those skilled in the art to which it appertains.

A device constructed as above described not only provides for thevexit of the heated air and gases arising from the contents of the vessel, but also for a continuous current of cold air through the latter.

The invention is also readily adapted for use upon vessels of varying diameter, is easily cleansedand,being of simple construction, it can be manufactured and supplied at slight cost.

We claim as our inventionl. A cooling device comprising a plate or base provided upon its under side with airinlet grooves and upon its upper surface with a receptacle for the reception of a cooling medium and an outlet-flue projecting upwardly from said plate or base, substantially as and for the purpose set forth.

2. In a cooling device of the class described, the combination, with a plate or base provided with air-inlet openings and with a receptacle for the reception ofA a cooling medium, of an outlet-flue and a cap therefor and adjustable thereon, substantially as and forl comprising a plate or base provided with grooves 0r corrugations upon its under side for the passage of air, an annular flange projecting upwardly from said plate or base and forming a receptacle, an outlet-flue projecting upwardly from the center of said receptacle and opening through the plate or base, and a cap for said iiue consisting of the cap proper, arms depending therefrom, and a ring connecting the lower ,ends of said arrns and encircling the iiue, substantially as and for the purpose set forth.

l 4. The combination,with a vessel, of a coollng device consisting of a plate or base form- 

